Boston Mayor Michelle Wu defended the whopping $650,000 legal bill the city paid to help her prepare for a Congressional hearing on sanctuary cities, saying it was necessary amid threats to put

Boston Mayor Michelle Wu testified before a House committee on so-called "sanctuary cities" in Washington Wednesday.

A GOP-led committee questioned mayors Wednesday on their limited cooperation with federal immigration authorities. Boston's Mayor Wu has argued the policy keeps the city safe and builds trust with diverse communities.

Fresh off the mayor’s defense of the city’s sanctuary policies and public safety record before a Congressional oversight committee, the Boston City Council held a community-based hearing where advocates pushed for expansion of the Trust Act.

The city of Boston is sick of having people outside Boston tell us what we need,” Mayor Wu said in a contentious hearing on local immigration policies in Boston and other cities.